January 16, 2021
Guy Marcozzi
Duffield Associates LLC has combined with two other engineering and geoscience consulting firms to form a robust national organization offering comprehensive environmental, energy, water and civil infrastructure capabilities.
The combination includes Hull & Associates LLC, headquartered in Columbus, Ohio, and HSW Consulting LLC, headquartered in Tampa, Fla. The combination includes over 275 staff in 20 offices across eight states.
The former leaders of Duffield, Hull and HSW will continue to actively participate as senior leaders within the organization. Gerry Salontai, CEO of the combined firm, said, “Each of these companies has outstanding leadership in place that will allow continued success individually while building a combined leadership team moving forward. Hull, HSW and Duffield provide a complementary set of capabilities that will expand service offerings to our growing client base within the combined companies.”